× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for January 6, 2004
International Automotive Technicians' Network (iATN) - Members Only
Next
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Open Help Requests for GM
Help Request Answers
1952 Chevrolet 1/2 ton 216CID Torque tube seal
I need to replace the seal assy in the torque tube. The new seal assy is a brass sleeve with a lip seal. What is the best way to deal with the old one? Do I drive it in further, or is there a way to get it out? Does the torque tube tip downward when the joint ...
View
1989 Chevrolet Corvette 5.7L No Start VIN: 1G1YY21811
hello group, this '89 corvette will cranks and not start at times. fuel pressure, injector control, ignition, scan data, and compression all test good when under failure conditions. this will happen intermittently under all conditions except cold. if i give th...
View
1998 Chevrolet Cavalier Z24 2.4L No Start, Cuts out VIN: 1G1JF12T5W
this car start and shuts off; also sometimes the car does not start at all and then if you wait 15 to 20 minutes it will start. The anti theft light comes on and flashes. When you get the car started the anti theft light will come on and stay on until the car ... Trouble codes: P1629, P0335, Z24, Z25, Z12
View
1999 Chevrolet Express 3500 5.7L Hesitation VIN: 1GCHG39R4X
This truck came in with a cold bog and backfire through intake. On cold accel only last maybe 45 seconds after start up. Then run great until its cold again. Fuel pressure is 65 pis as it is backfiring. No codes and temp sensors like to be in range. Any help w...
View
2000 Chevrolet Silverado 1500 4.8L Mechanical VIN: 2GTEK19V6Y
hey fellow techs, Sorry for the leangthy post but it is a long story. this truck originaly came in for a noisy lifter/ missfire about 10 months ago. upon inspection i found #2 intake lifter completly collapsed. i installed 16 new lifters new gaskets, head b...
View
2000 Chevrolet Silverado 1500 5.3L MIL Lamp on VIN: 1GCEC19T7X
bank one sensor #2 moving from 775mv. to 100mv. put new 02 in same results. fresh tune up and injector cleaning . bank 2 sensor 2 stays at about 750mv. Trouble codes: P0420
View
2001 Chevrolet Silverado 2500 HD 6.6L No Start VIN: 1GCHKK2314
Vehicle came in with cold start complaint. Vehicle would start than die. Owner would prime with hand fuel pump and vehicle would run fine all day. Test for air revealed air in line out of filter. Fuel to filter clear of air. Filter was replaced and condition c...
View
1995 GMC K1500 Suburban SLE 5.7L Transmission VIN: 1GKFK16K8S
At present the vehicle exhibits a slip (tach will rev high)between the 1-2 shift only at cold ambient temperature (30-40F). It also exhibits a no power or flat line during an accelleration/moderate load (no down shift from O/D or 3rd. Scanner data & dash tach ...
View
2000 GMC Savana 3500 6.5L No Start, Cuts out VIN: 1GDJG31F7Y
This vehicle originally had a cutting out, stalls sometimes restarts ok, occasionally difficult to restart complaint. Based on the description of the complaint I was leaning toward the fuel soleniod driver due to a Repair-Trac bullentin. The problem was VERY i... Trouble codes: P1626, U1192 (Lost communication with PasslockTM module), P0251
View
2000 GMC Sierra 1500 SL 5.3L abs VIN: 2GTEK19T1Y
Good day too all, I am working with a 2000 GMC Sierra Z71 Pick-up, the ABS is appling below 10 MPH just before you come to a complete stop. this is intermitent once out of 8-10 stops does this happen. tested the Wheel speed sensors on both front wheels and th...
View
2000 GMC Sierra 1500 SL 5.3L steering wheel shaking VIN: 1GTEK19T7Y
We have a occasional vibration in the front end over 25mph. It literally moves the steering wheel right and left when it starts, like a out of round tire under 10mph. The tires are not out of round but are a little choppy. The tire balance is good. When I test...
View
1987 Oldsmobile 98 Regency Brougham 3.8L Poor Idle Quality, Cuts out, Stall, Misfire VIN: 1G3CW5132H
Hey friends, I have a fun one here. The customer brought this gem in after a buddy put an engine in for him. The car ran fine for 3 months before this problem showed up. What it does is runs very poorly (actually the symptoms are exactly like a plugged cat) un...
View
1990 Oldsmobile Cutlass Supreme 3.1L electronic heater control VIN: 1G3WS51TXL
Good day everyone I have a problem with my electronic heater control when i first start the car it lights up and works for a while then it will cut out but my display lights for what ever it is set on will stay on if its on defrost it will cut out and only blo...
View
1992 Oldsmobile Bravada 4.3L No Start, Stall VIN: 1GHDT13W7N
DRIVER SAYS THAT THE BRAVADA RUNS GOOD MOST OF THE TIME. SOMETIMES AT A STOP SIGN IT WILL STALL. IT STARTS UP AGAIN AND MAY RUN FINE OR IT WILL DIE IN A BLOCK OR TWO, THEN IT IS VERY HARD TO START.I HAVE CHECKED FUEL, SPARK, VACUUM, I CHECKED FOR CODES THERE W...
View
1997 Pontiac Grand Prix GT 3.8L Stall VIN: 1G2WP52K5V
This thing will stall after hard accel and fast decel while driving only. Starts right back up. I have a good snapshot on the tech 1, the pcm seems to be holding the iac at 0 for too long, on the snapshot iac is at 0 until rpm gets down to 250 next frame iac g...
View

Fixes & Summaries for GM
Fix/Summary Answers
1994 Buick Park Avenue 3.8L Poor Idle Quality, Surge, Stall, MIL Lamp on VIN: 1G4CW52L2R
Thanks to all the replies I recieved I really appreciate the time you took to help. Thanks goes to Tom , Barry, Gerry, Mike , Roger, Dean , Craig, John , Bob , Dave , Paul and Matt. Dave recomended fuel pressure regulator and after a thourough test of this sys... Trouble codes: 101 (Mass Air Flow Sensor Failure), 626 (VATs Failure), 629 (History code Invalid Pass key Frequency), 101 (Mass Air Flow Sensor Failure), 740 (History Code Torque converter Clutch failure), 626 (VATs Failure).
13
1992 Chevrolet Cavalier RS 3.1L Mechanical VIN: 1G1JC81T2N
Thanks to every one who reponded (19) the reponses where split 50-50 to take out top or bottom ; so to save time I first checked the sub frame bolts to see if they would come loose first . two wouldn`t budge so I took the engine out the top . thanks again ...
19
1992 Chevrolet Lumina 3.1L Excessive Emissions VIN: 2G1WL54T6N
Thanks for all the great responses we recieved. We determined that the o2 did have a rich biased. We replaced the o2 and then created similar load and drove with the 5-gas hooked up and found numbers less than half of what we originally had. Vehicle passed 2-s...
13
1996 Chevrolet K1500 5.7L 3-4 clutch VIN: 2GTEK19RXT
thanx for all the replies, replaced the pressure regulator valve. found the valve to be worn. installed a sonnax tcc regulator valve kit. trans shifting good. thanx again, tom
7
2000 Chevrolet C3500 6.5L Poor Idle Quality, Stall, MIL Lamp on, Dies downshifting VIN: 1GBKC34F4Y
Well this one is history. The injection pump was the problem. Steve said this truck was under an 11 year 120,000 mile. warranty called chevy they said to bring it in. I guess this is a common failure with P0251-P0216-P1216 codes. Well I got some more info the ... Trouble codes: P0251 (Injection pump rotor/cam malfunction), P0216 (Injection timing control circuit malfunction), P1216 (Engine control solenoid closure time out of range Old), P0216 (Injection timing control circuit malfunction).
3
1995 GMC Jimmy 4.3L steering VIN: 1GKDT13W75
The replies recommended checking the caster and camber, replacement of the pitman arm, and a possible gear box. The customer has chosen to wait to see if the problem becomes more persistent- since our techs did not experience it themselves after driving the ve...
3
1997 GMC Jimmy SL 4.3L Hesitation, Cuts out, Misfire, MIL Lamp on VIN: 1GKCS18WXV
Thank you to everyone who responded to our request for help. Those who suggested the fuel pressure regulator were correct. The hint to look for a washing effect, especially on the last two cylinders, was the clincher. We overlooked that when we replaced the in... Trouble codes: 0300 (Random Misfires).
9
1999 GMC Sierra 1500 SL 5.3L Ignition VIN: 1GTEK19T6X
OK here goes. The underhood relay and fuse panel was shorted internally, the underdash wiring harness was burned at the connector for the ignition switch and multifunction switch, the multifunction swith wiring harness was melted. Replaced all three and truck ...
5
1979 Oldsmobile 98 Regency 5.7L Controller VIN: 3X69N9M127
Delivered car today..Needed extra time to make sure the 'FIX' really worked. Thank you to the people that took time to help. Some said to use a manual switch to operate, but since this car belongs to an elderly woman, I didn't want to do this. 2 gave possible ...
6
Prev (Also Available: All, Asian, Chrysler, European, Ford, GM.) Next